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unit UPlatformLinux;
interface
{$IFDEF FPC}
{$MODE Delphi}
{$ENDIF}
{$I switches.inc}
uses
Classes,
UPlatform,
UConfig;
type
TPlatformLinux = class(TInterfacedObject, IPlatform)
private
function GetHomeDir(): string;
public
function DirectoryFindFiles(Dir, Filter : WideString; ReturnAllSubDirs : Boolean) : TDirectoryEntryArray;
function TerminateIfAlreadyRunning(var WndTitle : String) : Boolean;
function FindSongFile(Dir, Mask: widestring): widestring;
procedure Halt;
function GetLogPath : WideString;
function GetGameSharedPath : WideString;
function GetGameUserPath : WideString;
end;
implementation
uses
UCommandLine,
BaseUnix,
{$IF FPC_VERSION_INT >= 2002002}
pwd,
{$IFEND}
SysUtils,
ULog;
function TPlatformLinux.DirectoryFindFiles(Dir, Filter : WideString; ReturnAllSubDirs : Boolean) : TDirectoryEntryArray;
var
i : Integer;
TheDir : pDir;
ADirent : pDirent;
Entry : Longint;
lAttrib : integer;
begin
i := 0;
Filter := LowerCase(Filter);
TheDir := FpOpenDir( Dir );
if Assigned(TheDir) then
begin
repeat
ADirent := FpReadDir(TheDir^);
if Assigned(ADirent) and (ADirent^.d_name <> '.') and (ADirent^.d_name <> '..') then
begin
lAttrib := FileGetAttr(Dir + ADirent^.d_name);
if ReturnAllSubDirs and ((lAttrib and faDirectory) <> 0) then
begin
SetLength( Result, i + 1);
Result[i].Name := ADirent^.d_name;
Result[i].IsDirectory := true;
Result[i].IsFile := false;
i := i + 1;
end
else if (Length(Filter) = 0) or (Pos( Filter, LowerCase(ADirent^.d_name)) > 0) then
begin
SetLength( Result, i + 1);
Result[i].Name := ADirent^.d_name;
Result[i].IsDirectory := false;
Result[i].IsFile := true;
i := i + 1;
end;
end;
until (ADirent = nil);
FpCloseDir(TheDir^);
end;
end;
function TPlatformLinux.GetLogPath : WideString;
begin
if FindCmdLineSwitch( cUseLocalPaths ) then
begin
Result := ExtractFilePath(ParamStr(0));
end
else
begin
{$IFDEF UseLocalDirs}
Result := ExtractFilePath(ParamStr(0));
{$ELSE}
Result := LogPath + PathDelim;
{$ENDIF}
end;
forcedirectories( result );
end;
function TPlatformLinux.GetGameSharedPath : WideString;
begin
if FindCmdLineSwitch( cUseLocalPaths ) then
Result := ExtractFilePath(ParamStr(0))
else
begin
{$IFDEF UseLocalDirs}
Result := ExtractFilePath(ParamStr(0));
{$ELSE}
Result := SharedPath + PathDelim;
{$ENDIF}
end;
end;
function TPlatformLinux.GetGameUserPath: WideString;
begin
if FindCmdLineSwitch( cUseLocalPaths ) then
Result := ExtractFilePath(ParamStr(0))
else
begin
{$IFDEF UseLocalDirs}
Result := ExtractFilePath(ParamStr(0));
{$ELSE}
Result := GetHomeDir() + '.'+PathSuffix + PathDelim;
{$ENDIF}
end;
end;
(**
* Returns the user's home directory terminated by a path delimiter
*)
function TPlatformLinux.GetHomeDir(): string;
{$IF FPC_VERSION_INT >= 2002002}
var
PasswdEntry: PPasswd;
{$IFEND}
begin
Result := '';
{$IF FPC_VERSION_INT >= 2002002}
// try to retrieve the info from passwd
PasswdEntry := FpGetpwuid(FpGetuid());
if (PasswdEntry <> nil) then
Result := PasswdEntry.pw_dir;
{$IFEND}
// fallback if passwd does not contain the path
if (Result = '') then
Result := GetEnvironmentVariable('HOME');
// add trailing path delimiter (normally '/')
if (Result <> '') then
Result := IncludeTrailingPathDelimiter(Result);
{$IF FPC_VERSION_INT >= 2002002}
// GetUserDir() is another function that returns a user path.
// It uses env-var HOME or a fallback to a temp-dir.
//Result := GetUserDir();
{$IFEND}
end;
// FIXME: Maybe this should be TPlatformBase.Halt() for all platforms
procedure TPlatformLinux.Halt;
begin
System.Halt;
end;
function TPlatformLinux.TerminateIfAlreadyRunning(var WndTitle : String) : Boolean;
begin
// Linux does not check for running apps at the moment
Result := false;
end;
// FIXME: just a dirty-fix to make the linux build work again.
// This i the same as the corresponding function for windows
// (and MacOSX?).
// Maybe this should be TPlatformBase.FindSongFile()
function TPlatformLinux.FindSongFile(Dir, Mask: widestring): widestring;
var
SR: TSearchRec; // for parsing song directory
begin
Result := '';
if SysUtils.FindFirst(Dir + Mask, faDirectory, SR) = 0 then
begin
Result := SR.Name;
end; // if
SysUtils.FindClose(SR);
end;
end.
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